Adjustable mounting for bench tool and the like



April 24, 192s.

A. N. ZELBERGLET ADJUSTABLE MOUNTING FOR BENCH TOOLS AND THE LIKE Filed May 14. 1924 if.: 1:2: i

N S mmvfm WH. .T zA W M HY MB H Y of the specification.

rammed Apr. 24, 192s.

UNITED STATES ABRAHAM N. ZELBERGLET,

OF OAKLAND, CALIFORNIA.

ADJUSTABLE MONTING FOR BENCH TOOL AND THE LIKE.

Application filed May 14,

`ment oi the vertical positioning of the" mounted device.

The object of the invention is to provide a mounting of the` character described having seli` operating means for supporting practically all the weight of thesupported bench tool and movable parts of the mounting dur ing manipulation of the mounting.

The invention possesses other objects and :features of advantage, someof which, with the foregoing, will be setforth in the following description of the preferred form oi myA invention which. is` illustrated in the drawings accompanying and forming part It is to be understood that l do not limit myself to the showing` made by the said drawings and description, as I may adopt variations ol.l the preferred lliorm within the scope ot' my invention as set Yforth in 'the claims.

Referring to said drawings:

Figure 1 is a front view oi a mounting of my ,invention showing a vise mounted thereon.

l`igure 2 is a sectional view taken on the line 2-2 in Figure 1, the vise being shown in full view. j

Figure 3 is a side View of a portion of the device.

The eliiciency of a mechanics eli'ort depends to a considerable extent on the accessi- -bility olf hisworli. lnshops in which fixed bench tools are used, all work must usually be operated on thereby at a lixed working height, regardless of the height of the mechanic and his relation to the work. To obviatc the above mentioned diiiiculty, verti cally adjustable mountings have been provided, but, since the tools are usually of considerable weight and the movable part of the lmounting must be correspondingly heavy-two hundred pounds being not uncommon 'for the combined weights of the tool and movable portion of the mounting-the manipulation for adjustment has required the putting forth of considerable eili'ort by the mechanic, with the result that at best such manipulation has been extremely awkward and dilicult. ln accordance with my invention, however, l have provided a bench tool mountingin which the great portion of the weight supported thereby during vertical 1924. Serial No. 713,346.

adjustment of the mounting and tool, is car* ried independently o'l the means for moving the mounting to adjusted position.

As here shown, the device oi my invention comprises a base member 5 and a vertically movable supporting member 8, the former being arranged to fbe secured to a bench G by means of bolts 7, while the latter is slidably mounted in a guideway 9 pro vided in the base.` The support 8 is here shown provided with ai'langed head portion l1 to which a vise 19., or other bench tool maybe secured by means of bolts 13. The support is also provided with a stem portion 14 arranged to slidablylit in said guideway and is preferably oit such length as to eX- teud substantially to the bottom of the guideway when the support is in the lower moet position therein. The guideway 9 is preferably cylindrical in shape, is provided with a slot 16 extending longitudinally *thereof at one side, and is closed at its bottom end 17. Movement of the support in the guideway may be effected by means o'l` a handle 1S ixed to the lower end of the stem 111 and extending outwardly through the slot 16.

In accordance with my invention, means are provided for enabling a mechanic to readily move the support to position the tool at the desired height, notwithstanding the excessive weights to be moved as previously pointed out. As here shown, the lower portion of the stem 14 is provided with a bore 19 in which a helicalk spring 21 `is arranged to be placed, said spring being interposed between seats provided at the bottom end 17 of the guidevvay `and the top end 22 of the bore 19. rlihe spring 21 is preferably of such strength and dimensions that it will exert a lifting force almost equaling the 'entire weight oit the support and tool. ln this manner, the greater part oi the 'force to be exerted in raising the sup port and load will be supplied by the spring, and the mechanic need exert but a comparatively small additional force t0 move or hold the support in desired position.

Downward movement of the support is here shown arranged to be prevented by means of a ratchet rack 23 provided on the base member 5 adjacent the slot 16, the rack cooperating with a pawl 24; here shown mounted on the shank 26 of the handle 18. In the` present embodiment, the pawl 9.4L is It will thus be noted that releasable means havebeen provided for holding the support in desired raised position.

Sincethesupport should be held rigidly in position, means are provided for positively looking the stem 14 in the guideway 9. As here shown, said means include a set screw 3l preferably mounted in the upper portion of the base and arranged to engage the stem I claim 2' l LAn adjustable bench tool mounting comprising a vertically disposed fixed guideway, a unitary tool supporting member slidably engaging in said guideway for movement of the'parts thereof in lifted paths, a. spring supporting said member vfor movement between predetermined positions, and means arranged for supporting said member independently of said spring in said predetermined positions, said means comprising a rack lined with respect to said guide, a pawl titled to said supporting member for vertical movement therewith arranged to engage said rack, and a handle for moving said member in said guide.

2. An adjustable bench tool mounting comprising a body delining a vertically disposed guideway and a vertically extending slot, a hollow unitary tool-supporting member slidably engaging in said guideway, a coil spring arranged within said supporting member and pressing against said body whereby it may support the latter in diliiierent positions, a. rack provided on said body, a handle fixed to said supporting member and extending through said slot, and a pawl associated with said handle and arranged to engage said rack and lock said member in adjusted position.

ln testimony whereof, I have hereunto set my hand at Oakland, California, this 8th day of May, 1924.

ABRAHAM N. ZELBERGLET. 

